How to Convert Listeners to Subscribers and Reduce your Configs

I wrote Don't Ever use Symfony Listeners 2 months ago (if you missed it, be sure to read it to better understand this 2nd part). It got many constructive comments, mostly focused on particular standalone sentences without context.

To my surprise, none of the comments shown that listener beats subscriber.
But what can you do, if you'd like to try subscribers, but currently have over 100 listeners in your application?

2 Ways to do One Thing? = WTF! WHY TF?

Just a reminder, how hurtful is to teach people 2 very similar ways to do one thing.

Google shows that people are confused since 2012, wow!

And this is not related only to big patterns as subscriber or listener. We do such decisions every day - while we code a new feature when we add a new package to composer.json when we integrate 4th API to verify payments.